Train to be a space tourist

Twitter goes public

Twitter went public on Thursday with its IPO price set at $26 a share. The company's shares opened just before 8 a.m. PT on Thursday at $45.10 and held strong throughout the day. Twitter hit a high of $50.09 on Thursday before closing the day at $44.90.

New species of microbe thrives in spacecraft clean rooms

More Model S fires

Tesla's Model S, which the company's Web site touts as "the safest car in America," has sustained its third fire in six weeks. Tesla said the most recent Model S blaze resulted from an accident involving a trailer. Investigators are now traveling to the site to uncover further details.

Photo by: Screenshot by Wayne Cunningham/CNET

REVIEW

The most beautiful phone ever has one wildly annoying issue

he Samsung Galaxy S8's fast speeds and fantastic curved screen make it a top phone for 2017, but the annoying fingerprint reader could sour your experience.